I'm not mocking at all, nor am i sayin "your stupid"; thats pretty naive to think that. This has been covered a bunch of times and suggested. The pump is maxed based on its design.

I'm under the impression the pump struggles most at midrange rpm. If you look at Tony's data in post 812 with the improved pump, there is still a period in the middle of the rpm range when high pressure fuel is noticeably down. Then it picks up as rpms raise. This tells me the pump has the potential to flow (as is seen at high rpm when fuel demands are greatest) but it just needs to get up to speed first. That is why I suggested spinning the pump faster.

The data suggests the pump can flow enough if it is spinning fast enough. It should continue to flow more as you increase its speed until it asymptotically reaches an absolute limit when the pumping force is equalized with the resistance to flow within the pump or when the pump breaks, which ever happens first.

In Tony's data the pressure is continuing to increase towards the end of the pull. The pump shows no signs of not being able to keep up with demand once it is spinning fast enough.

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please see http://www.burgertuning.com/emissions_info.html for more information on legal requirements related to use of BMS parts.

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please see http://www.burgertuning.com/emissions_info.html for more information on legal requirements related to use of BMS parts.

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please see http://www.burgertuning.com/emissions_info.html for more information on legal requirements related to use of BMS parts.

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please see http://www.burgertuning.com/emissions_info.html for more information on legal requirements related to use of BMS parts.

Yeah, I wish I had the time to just do it myself. They are also swapping in a 3.42 rear gear carrier we picked up cheaply.

I can't wait until you are able to optimize a JB4 map for the single. I'm just using 27.3 right now; but I can see in the logs that spool can still be optimized (not necessarily with more duty cycle, but by carrying higher duty cycle past 4000 RPM). Otherwise, it works surprisingly well considering it was written for stock twins!

I can't wait until you are able to optimize a JB4 map for the single. I'm just using 27.3 right now; but I can see in the logs that spool can still be optimized (not necessarily with more duty cycle, but by carrying higher duty cycle past 4000 RPM). Otherwise, it works surprisingly well considering it was written for stock twins!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please see http://www.burgertuning.com/emissions_info.html for more information on legal requirements related to use of BMS parts.

I can't wait until you are able to optimize a JB4 map for the single. I'm just using 27.3 right now; but I can see in the logs that spool can still be optimized (not necessarily with more duty cycle, but by carrying higher duty cycle past 4000 RPM). Otherwise, it works surprisingly well considering it was written for stock twins!

We'll see. Of course while boost is less than the WG spring it does not matter what the JB4 is doing.

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please see http://www.burgertuning.com/emissions_info.html for more information on legal requirements related to use of BMS parts.